Switch spring



FIG. 1 is a front, top, left side perspective view of a first embodimentof a switch spring showing my new design;

FIG. 2 is a rear, bottom, right side perspective view thereof;

FIG. 3 is a front view thereof, the rear view being a mirror image ofthe front view;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a cross sectional view along the line 8-8 of FIG. 4;

FIG. 9 is a front, top, left side perspective view of a secondembodiment of a switch spring showing my new design;

FIG. 10 is a rear, bottom, right side perspective view thereof;

FIG. 11 is a front view thereof, the rear view being a mirror image ofthe front view;

FIG. 12 is a top plan view thereof;

FIG. 13 is a bottom plan view thereof;

FIG. 14 is a left side view thereof;

FIG. 15 is a right side view thereof; and,

FIG. 16 is a cross sectional view along the line 16-16 of FIG. 12.

The broken lines depict portions of the switch spring that form no partof the claimed design.

CLAIM The ornamental design for a switch spring, as shown and described.